Tire tube repair plate



n H. V. JAMES TIRE TUBE REPAIR PLATE Filed Aug. 28, 1944 j IN VEN TOR.

W mf/mf Patented Dec. 17,11946 2,412,736 y, :rrnn'rnnn REPAIR PLATE HaroldhV. James, Denver, Colo. Application August 2s, 1944, serial No. 551,540

(clins- 18)` 6 Claims.

This invention relates Ito a tube vulcanizingdevice for pneumatic tires, and has for its principal object the Aprovision of a simple, compact, and highly ecient .tube plate vulcanizer which will accommodate one or more tube repairs simultaneously; which will accommodate exceedingly long repairs in the tube; and which will apply a uniform pressure ythroughout the entire area of .the repair.

Other objects of the invention are: to provide a device of this character in which the hot plate will be inver-tedand xedly supported to prevent dirt, dust and other foreign materials from ac-v cumulating on the surface; to provide a highly ef'rlcient mechanism for clamping the repair against the inverted hot plate; to provide means to rst rapidly close the repair against .the plate detail construction of the invention, which is designed' for simplicity, economy, and eflcieney.

These will become more apparent from the fol-,-v

lowing description. v

In the following detailed description of the invention, reference is had .to the .accompanying drawing which forms a part hereof. Like numerals refer to like parts in all view of the drawlng. and throughout the description.

In the drawing:

Fig. 1 is a front view of .the improved tire tube plate; Y

Fig. 2 is a side view thereof in .the closed position;

Fig. 3 is a similar view in the open position, showing a portion thereof in section to illustrate the interior mechanism, `the section being Itaken n the line 63, Fig. 1:

Fig. 4 is afragmen-tary top view of a reciprocating post employed in the improved tube plate; y Fig. 5 is a detail crosssecticn,taken on the line 5 5, Fig. 2: and

Fig. 6 is an enlarged cross-section of the heating plate, taken on the line 6-6, Fig. l.

The improved tube plate is supported upon a work bench or other supporting structure, such as indicated at II), by means of a bench bracket II. The bench bracket is provided with a vertical surface against Which one or more vertical guide sleeve I2 are secured. The sleeves are formed with attachment flanges I3 which are thereof, to a tubular extremity having a hori-` zontal attachment flange I6 at its bottom.

A heater housing I'I issecuredi-to the attachment flanges I6 of the Aarms I5 by means of suitable bolts I8. The housing I1 is a box-like structure having a normally open bottom. The bottom is closed by means of a hot plate I 9 secured therein by means of counter-sunk screws 20. Suitable heating elements 2 I, of any of the standard: varieties, are secured to the upper surfaceof the.

hot plate i9 within the housing I7.

The tube .to be repaired is clamped against thel bottom surface of the hot plate I9, through the medumof a vertical sliding post 22, there being` one `of these posts s'lidably mounted in each of the sleeves I2.

The upper extremity of each post 22 is a'ttened, as shown at 23, to pass between a pair of levers 24 formed on a bellcrank lever fitting 25. The levers 24 are mounted on a pivot pin 30 extending through the flattened portion 23 of .the

post.` An operating handle 26 extends from they fitting 25. The fittings 25 are each supported ontwo connecting links 21, the lower extremities ofwhich are mounted on hinge bolts 28 on the opposite sides of the sleeve I2, and .the upper ex- .tremities of which are mounted on hinge bolts 23l on opposite sides of the fitting 25.

A bearing sleeve 46 carrying a swinging brack-A et 3| is rotatably mounted on the lower extremityjof each of the posts 22. The bearing sleeves are supported on the posts by means of adjusting nuts 32, the lower'extremities of the posts being threadedvfas shown at 33, for .the nuts 32.4 Each swinging bracket 3| terminates in a hori-` 0 zontal platform 34 from the center of which a .square stud 35 arises. A cushion member 36 surrounds the stud and rests upon the platform 34.

The cushion member may be of any desired re-` silient material, preferably rubber. A compresrests upon the cushion member 36.

raised, apex ridge 38.

A pressure plate 39 rests upon the apex ridge 38 of the plate 3l. The pressure plate is formed with 1 an enlarged socket 40 in its bottom for loosely receiving the upper extremity of Ithe stud 35. This allows the pressure plate to tiltI freely on theapex ridge 38, as shown in Fig. 3. The upper face ofthe plate 33 is covered by means II by" means of Asuitable of a suitable pad 4| of cork, asbestos sheeting or similar material. i

While the above description applies to a single post 22, with its attached apparatus, it is to be The rst movement causes the levers24 to -'act against the links 21 so as to rapidly raise the post 22 to bring the repair against the hot plate Ill. Further downward movement of the handle 26 brings a toggle actionv into play between 'the levers 24 and the links 21 which exerts an extremely strong upward pressure on'theposts 22 to rmly clamp the repair againfst-thevhot` plate.'

The spacing between the hot plate and the pressure fplate 39 may be pre-set to obtain the desired pressure on any-repair by adjustment of the nutsz. .a v v v It will be noted vthat iir'the extreme 4lower position of the handle 2'6, the bolts 29 'willlpass beyond the'dead center position` between the pin 3U and the bolts 28, asshotvn in Fig. 2. This firmly and automatically locks the pressureiplate in thefraised position. The handle `2t is supe ported in the lraised position by gravity when not i'nuse.

Since' thebracket-B I' is rotatably mounted,` the plate 35 can` be swung to' any` desired position beneath the hot plate 19. For long' repairs, the pressure plates 39of two of the posts can be swung together so as to `cover an exceedingly long area. Means are provided forV curing repairs around the Valve stems of tubes, by placing a vround tapereedged plug-42 in the surface of the hotlpiate i9. This'plug is normally clamped in place by means of a threaded stud "43 which extends upwardlythrough the tubular extremity 45 of the arm I5 toa wing nut 44. To belused for a valve repairthe plug' 42 is removed andthe tube valve is extended into the tubular extrem` ity 45.

While a specific form ofthe improvementrhas' been described and. illustrated herein, it is de` sired to be understood that the same ymay be` varied, within the scope-of the appended claims, without departing from the-spirit of the invention.

Having thus described the invention; whatv is claimed and desired(secured'byletters Pat'eiitis; i 1. AV device for re'pairingpneumatic tire tubescomprising.: a supporting bracket; a vertical. guide sleeve supported by saidbracket;fanfarrny extending forwardly from` said guide sleeve; al not 'plate sopportedlby' said" ann 'with 'its nearing surface facing downward; "a vertical movable post mounted in 'said guide sleeve and h'avrre.7 portions projecting above and below tlieltter' a support vextending foiwardly'froni thep'roje'ct ing below portion of'said post; a prssure'plate supported by said support below'said hot plate;

means for raising said post in its' guide sleever to: cause said pressure plate 'to' approach said' hot plate; and means for adjusting "tlieve'rtical' position of' said-supportson-said "post,

2. A device for repairing pneumatic tire tubes comprising: a supporting bracket; a: 4vertical guide sleeve supported'by said bracket; an armi extending forwardly from-said gui'defsleeve'; :alho't plate supported bysaida'rlm -with itsheating'sun face facing' downward; 'af vertical movable post" r yiti'gpofrt-iorsj projecting abve `andbelow tlle llat'te'rl; fai-support mounted insaid g'uidesle'eveiand 4 extending forwardly from the projecting below portion of said post; a pressure plate supported by said support below said hot plate; means for raising said post in its guide sleeve to cause said pressure plate to approach said hot plate, the lower extremity of said post being threaded; and a nut carried on the threads for raising and lowering said support thereon.

3. A device for repairingpneumatio tire tubes comprising: a -supportingbracketL "afvertical guide sleeve having an open top and bottom,

supported by said bracket; an arm extending *'forwardly from said guide sleeve; a hot plate supported by said arm with its heating surface facingdownward; a vertically movable post slidably'mounted in said guide sleeve and having portions projecting above and below the latter;

- p'res'surelplatesupported by-saidcuslrion mem-' ber; aridneans positioned above said guidesleev and engaging' the projecting above portion of saidY post for raising said post in its guider sleeveitfo cause said pressure Vplate Ato approach sai'd'hot plate. i

4. A device for repairing pneumatic tire Vtubes', comprising: a supporting bracket; a' vertical guide sleevehaving an' open'topan'd bottorn'supportedb'y said bracket; van arm extending forward@V ly from said guide sleeve; a hot plate supported by said `arm with its heating surface facing downf ward al vertically movable post lslidably mounted in said guide sleevesandY havingfprtions"pro jecting above and below the latter; afs'upporty rotatably mounted onl and extending forwardly from the projecting below .portion of'said post; a platform supported by` said support; a cushion' member carried by' said` platform; a'stud extend'- ing 'upwardly from said platformthrough said cushion member; a compression plate resting on said cushion member and surrondingsaid stud;

Wardly from saidvv guide sleeve; ahot plate sup-` ported by saidarm with its heating surfaceffacing downward; a vertically movable postslidably mounted' in' said guide sleeve and having portions,

projecting above and below the latter;'a support rotatably mounted' on and extending forwardly',

fromthe projecting below portion of said post;

a platform supportedbysaid'support; a cushionL member Carried by Said Dlatfrm; "a'St'ud extend?" ing 'upwardly from Said platforr'tl'iio gli Said cushion member; a compre's'sionplate resting'on' said cushion member and surrounding said s'tufd;` a 'raised medialv portion on said comp'rdssioi' plate; a pressure plate resting: nfthe raised. medial portion of said compression plate 'soltlda't' it may'freely tilt thereon; and means' positioned above said guide'sle'evel 'and `engaging the pro'-V`v ject/ing above p'o'rtionofsaidpdst for raising said post inY its guidesleeva -6. vA- tube pl'atevul'canizer comprising: abenc'hi bracket; afpair yo'f vertical guide ,sleeves securedl to -'a fbrwardfade on said bracket; 'at s"tipportir'rgfy wauw-therefrom; en annehmen' @flange mittel projecting above portion of the post therein and adapted to lift the latter; a swinging aim rotatably mounted on the projecting below portion of each post so that it may be swung beneath said 5 hot plate; and a pressure plate carried by each arm for lifting a tu-be against the bottom of said plate.

HAROLD V. JAMES. 

